# The numbe r of pavi ng st ones eac h measuring 2.5 m Ãƒâ€” 2 m required to pave a rectangular courtyard 30m long and 17.5 m wide, are

 [ A ]    80 [ B ]    105 [ C ]    33 [ D ]    99
 Answer : Option B Explanation : Required number of stones = $30X17.5\over2.5X2$ = 105